Physiology 2130 Lecture Notes - Extracellular Fluid, Body Fluid, Homeostasis
Document Summary
By the end of this section, you should be able to: define physiology, define homeostasis, describe negative feedback control systems, list the levels of organization in the human body. What is physiology: physiology is the study of function in living organisms. The fluid in which the cells of the body are bathed. This essentially consists of the interstitial fluid and blood plasma a region we will examine in more detail in module 2: external environment: The external environment also includes the space and contents of the digestive, respiratory, and urogenital tracts: homeostasis: The maintenance of relatively stable conditions within the internal environment regardless of what is happening in the external environment. Homeostasis (cont. : our body is capable of maintaining our internal environment so that our cells can function regardless of what is happening in the external environment. This is homeostasis: the body maintains homeostasis using negative and positive feedback control mechanisms. Negative feedback control systems: negative feedback control systems:
